Compass construction: circle with a scalloped rosette of arcs
A large ruled-and-compassed rosette; the transcription records the leaf bears no writing
A large circle drawn with the compass fills the sheet, its inner edge lined with a ring of small equal arcs that form a scalloped, flower-like rosette. Faint show-through of the mechanical drawings on the recto is visible beneath. The editorial note records that this side carries no writing.
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Circle rimmed with a rosette of equal arcs
A single large circle is enclosed by a second ring built from a series of equal arcs struck along its circumference, producing a scalloped, petal-like border. The figure is a compass exercise in dividing a circle into equal arcs.